O-ring mainly used for fluid (such as: water, oil, air, chemical solvents, chemicals, etc.) and sealing the gap between a static long-term use temperature of -60 ℃ to 220 ℃.. Varies on material, the use of static pressure is less than 20MPa. Sometimes for dynamic, dynamic pressure when using less than 5MPa. And semiconductor vacuum seal.

Commonly used materials: nitrile rubber, silicone rubber, fluorine rubber, EPDM rubber, acrylic resin, Tetrapropanate fluorine rubber, chloroprene rubber, epichlorohydrin rubber, fluoro silicone rubber, hydrogenated nitrile rubber, butyl rubber , natural rubber, polyurethane rubber, styrene butadiene rubber, nitrile rubber, carboxyl.